Printer&#39;s form



July 26, 1955 H. J. HILLAND 2,713,824

PRINTER S FORM Filed Aug. 8, 1949 5 Sheets-Sheet 1 & java 7'.

Li e? J July 26, 1955 HILLAND 2,713,824

PRINTER S FORM Filed Aug. 8, 1949 5 Sheets-Sheet 2 T27 3 M E haen/for.

July 26, 1955 HlLLAND 2,713,824

PRINTERS FORM 3 Sheets-Sheet 3 Filed Aug. 8, 1949 1729672 21 J67Jfla'famj Unite My invention relates generally to lock-up devices forlocking up printing forms, and the like, and more particularly to animproved lock-up mechanism of the general type illustrated in my priorPatent No. 2,449,38l, issued on September 14, 1948, the presentapplication being an improvement on the patented structure.

The present invention has among its objects the production of a lock-upmechanism for printers forms which is relatively simple in constructionand very efiicient in use, whereby printing forms may be readily lockedup without requiring the use of the usual printers furniture, or otherprinting material, within or without a printers chase, press, galley, orthe like.

Another object of the invention is the production of such an improvedlock-up mechanism having the principal advantages of the structuredisclosed in the above referred to patent, which is so constructed thatthe operations employed in the utilization of the present invention issimilar to present operations employed, with the exception that thefurniture or other lock-up material is not required, nor need the formbe originally locked up in the printing chase, galley, or the like.

A further object of the invention is the production of a novel lock-upmechanism of the type described, including a novel form of quoin whichco-acts with the other elements of the lock-up mechanism to produce veryefficient results, and which is relatively simple in construction, inexpensive to manufacture, and very durable in use.

Many other objects and advantages of the construction herein shown anddescribed will be obvious to those skilled in the art from thedisclosure herein given.

To this end my invention consists in the novel construction,arrangement, and combination of parts herein shown and described, andmore particularly pointed out in the claims.

In the drawings, wherein like reference characters represent like orcorresponding parts:

Fig. 1 is a plane view of a lock-up mechanism embodying the presentinvention with a printers form locked therein and the device positionedin a printers chase;

Fig. 2 is a section view through one of the lock-up quoins takenapproximately on the line 2-2 of Fig. 1;

Fig. 3 is a sectional view taken approximately on the line 33 of Fig. 2;

Fig. 4 is a perspective view of the quoin illustrated in Figs. 2 and 3;

Fig. 5 is a top plane view of such a quoin with a portion thereof brokenaway to disclose the details of construction;

Fig. 6 is a perspective view of one of the bar locking members;

Fig. 7 is a sectional view taken approximately on the line 77 of Fig. 1;

Fig. 8 is a top plane view of a bar locking member illustrating amodified form thereof with a portion of the structure broken away todisclose the details of construction;

atent Patented July 26, 1955 Fig. 9 is a sectional view takenapproximately on the line 9--9 of Fig. 8;

Fig. 10 is a sectional View taken approximately on the line 1010 of Fig.8;

Fig. 11 is a sectional view similar to Fig. 2 illustrating a modifiedform of quoin;

Fig. 12 is a fragmentary View of the quoin illustrated in Fig. 11 withportions of the structure broken away; and

Fig. 13 is a perspective view of the portions of a pair of additionalsupporting bars which may be employed, if desired, where two or moretype forms are being simultaneously printed.

The present invention, as hereinbefore mentioned, is an improvement ofthe device illustrated in my previous patent, which discloses a lock-upmechanism including two pairs of bars, the bars of each pair beingparallel to one another with one pair of bars extending at substantiallyright angles to the other pair of bars to define a form receiving spacebetween the respective bars. Each pair of intersecting or crossing barsis secured together by corner locking members, by means of which eachpair of parallel bars may engage and clamp the printing formtherebetween. The present invention, while utilizing pairs of bars andmeans for connecting the bars in rigid relation relative to each other,employs additional means in the form of novel quoins for providing theclamping forces required to maintain the form in locked-up position toincrease the flexibility of the device. The present construction, thusby employing quoins, permits the locking up of the form in a mannersimilar'to that heretofore employed, but eliminating the necessity ofemploying furniture, or the like, as Well as eliminating the necessityof locking the form in the chase, galleys, or the like, and permittinghandling and moving of the locked-up form without a chase or galley. Thepresent invention also has the advantage of permitting minor adjustmentsof or changes in the form Without disturbing the supporting bars.

Referring to the drawings, and particularly to Figs. 1 to 7, 1 indicatesgenerally a printers form to be locked up and supported by a printerschase 2, the form 1 comprising set type, a cut, or other form from whichprinting is to be run. The chase 2, as illustrated, is of conventionalform and is constructed with opposed inner side edges 3 and end edges 4,against which, under old methods, the form is clamped through the usualwooden or other furniture. Extending between the edges 3 is a pair ofspaced, parallel bars 5a and 5b, and extending at right angles to thebars 5 between the edges 4 is a second pair of spaced parallel bars 6aand 6b. As illustrated in Fig. 7, the bars 5a and 5b are positionedabove the bars 6a and 6b, so that the bars 5 and 6 may be movedindependently of one another throughout the area of the chase.

The bars 5a and 5b are each provided with an inverted, longitudinallyextending rack 7, and the bars 6a and 6b are each provided with anupward, longitudinally extending rack 8. The racks '7 and 8 in theconstruction illustrated are formed from separate stock and secured totheir respective bars by screws 9, or other suitable means, as clearlyillustrated in Fig. 3. However, if desired, the racks could be suitablyformed integrally with their respective bars. As illustrated in Fig. 1,the bars 5 and 6 are shorter in length than the distance between theedges of the chase between which they extend, and in the constructionillustrated, each end of the bars is provided with a threaded stud llrigidly secured thereto, and a disc-like chase engageable member 12.threadedly mounted thereon. The peripheral edge of each disc 12 isprovided with tool engaging apertures 13, in which may be inserted asuitable tool for facilitating the rotation of the disc, whereby thelatter may be rotated in a direction to move the same outwardly withrespect to the adjacent bar end and engage the adjacent inner edge ofthe chase, thus placing the bars under compression between oppositeedges of the chase.

As illustrated in Fig. 1, the bars 5 and 6 are operatively connected attheir intersections by corner members or slides 14a, 14b, 14c, and 14d,the member 14a being illustrated in Fig. 6.

Referring to Fig. 6, it will be noted that the member 14a, of generallyL-shape, is provided with a channel, indicated generally by the numeral15 shaped to receive the bar 6a, the member 14a being provided with achannel 16 adjacent one side wall of the channel 15 and the shoulder 17of the member 140/ is engageable with the complementally formed shoulderon the bar 6a to permit the member 14a to slide on the bar, with thelatter retained at all times in the channel. The member 14a which isprovided with a second channel, indicated generally by the numeral 16,extends at right angles to the channel 15 and positioned thereabove, andis adapted to receive the bar 5a. The member 14a is also provided with aflange 17 adjacent one edge of the channel 16 engageable with theshoulder 18 on the bar 5a, whereby the member 14a is free to slide alongthe bar 5a, with the latter being retained in the channel 16. Rotatablymounted in the member 1411 is a pair of pinions 19a and 1%, the pinion1% being positioned to engage the teeth in the rack 7 of the bar 5a, andthe pinion 19b positioned to engage the teeth on the rack 8 of the bar6a. As illustrated in Fig. 6, the pinion 19a is positioned in a slot21a, and the pinion 19b in the slot 21b, each pinion being rigidlymounted on a respective shaft 22 journaled in the member 14a at oppositesides of the slots 21a and 21b. The member 14a is provided with slots 23which respectively intersect the bores for the shafts 22, thereby, ineffect, forming a split bearing for each of the shafts. Connecting theportions of the member on opposite sides of each slot 23 are screws 24which are threaded into the portions of the member below the respectiveslots, as illustrated in Fig. 7; thus by tightening the screws 24,pressure may be applied on the shafts 22, whereby the latter may berigidly clamped or locked in the member, thereby preventing rotation ofthe pinions. Also rigidly secured to each shaft 22 is a disc 25 having aplurality of apertures 26 in its peripheral edge for the reception of asuitable tool by means of which the disc, shaft, and pinion associatedtherewith may be rotated. As illustrated in Fig. 6, each disc 25 ispositioned in alslot 27 formed in the member 14a, the end edges of theslots 27 diverging outwardly at each side of the block, as indicated at28, to provide adequate space for engagement of a tool with theapertures 26 and permit sufficient rotation of the disc by means of thetool to allow the tool to be inserted in the next adjacent aperture. Themembers 14 are all similar in construction insofar as the details thusfar described in connection with the member 14a, with the exception thatthe vertical relationship of the pinions of the members 14b and 14d arereversed as compared with the pinions of the members 14a and 140, aswill be apparent from an examination of Fig. 1, due to the relationshipbetween the bars 5a and 5b with the bars 6a and 61), whereby the racks 7are in an inverted position. i

It will be apparent that with the construction thus far described, themembers 14 maintain the bars 5a and 5b in parallel relation, and thebars 6a and 6b in parallel relation, but permit either pair of parallelbars to be moved along the other pair of bars. Thus the bars 5:: and 512may be moved towards or away from one another and, in like manner, thebars 6a and 6b moved towards or away from one another, assuming that allof the pinions are free to rotate. However, by tightening the respectivescrews 24 by means of a suitable tool engaged with the head of thescrew, the

members 14 may be locked in stationary position with respect to thebars, so that the two pairs of bars may be locked in any desiredrelationship, whereby the space adapted to receive the printing may beof any desired size within the limits of the chase or press, and may,within the inherent limits of the structure, be positioned anywherewithin the space defined by the internal edges 3 and 4 of the chase.Normally, upon release of the various pinions by backing off the screws24, the members 14 may be readily slid along the various bars. However,where it is desired to make very small adjustments of any of the members14 with respect to a bar or bars, the pinions may be rotated by means ofthe discs 25.

Positioned on each of the bars 5b and 6b, and extending inwardly intothe space occupied by the form 1 is a quoin, indicated generally by thenumeral 31, the latter, in the construction illustrated in Figs. 1 to 4,comprising a base or body member 32 having a channel 33 formed in oneface thereof of a size to receive the bars 5b or 6b, which have the sametransverse dimensions. Carried by the body 32 is a form engaging memberor plate 34 having a rectangularly-shaped shank 35 extending therefromand positioned in a channel 36 formed in the member 32. The latter isalso provided with a relatively narrow slot or channel 37 in which ispositioned a disc 38 having a threaded shank 39 rigidly secured theretoand threaded into a bore 41 in the shank 35. Thus by rotating the disc38 and stem 39, the member 34 may be moved toward or away from the adjacent face of the member 32, the face 42 of the disc 38 bearing on theadjacent wall 43 defining the slot 37.

The block 32 is also provided with a pair of bores 44, the axes of whichextend parallel to the channel 36, in which are positioned pins 45, theinner ends of which terminate in heads 46 of a diameter slightly lessthan that of the bore 44. The pins extend through the small bores 47 andhave their free ends suitably secured to the member 34. Positioned inthe respective bores 44 and encircling the pins 45 are compressionsprings 48, one end of which is seated upon the head 46 of the pin, andthe other end upon the shoulder 49 formed as a result of the differencein diameters of the bores 44 and 47. Thus the springs 48 tend to drawthe pins 45 into the block 32 and urge the member 34 toward the block.The disc 38 is therefore maintained in engagement with the wall 43 sothat play between the parts is substantially eliminated The open end ofeach of the bores 44 is preferably sealed by a threaded plug 51 providedwith a recess 52 for engagement of a suitable tool therewith. Tofacilitate rotation of the disc 38 and extension or retraction of themember 34 relative to the lock 32, the disc is provided with a pluralityof apertures 53 similar to the apertures 26 in the discs 25 and, asclearly illustrated in Fig. 3, the end walls of the slot 37 are flaredoutwardly at both sides of the slot, as indicated at 54 and 55, tofacilitate engagement of a tool with the apertures 53. The quoins 31, asillustrated in Fig. 1, are positioned on the bars 512 and 6b with thequoin on the bar 512 being inverted due to the fact that the bar 5/) ispositioned above the bar 6!). Thus by rotating the discs of therespective quoins, the members 34 of each quoin may be engaged with theadjacent edge of the form 1.

In locking up a form, the lock-up mechanism, including the bars 5 and 6,members 14, and quoins 31 are placed upon the make-up stone, or othersurface, and the respective pairs of parallel bars separated asufficient distance to receive the form to be locked up, the relativepositions of the bars depending upon the size of the form and thedesired position of the form when on the press. To facilitate thecentering or other positioning of the form, the bars 5 and 6 arepreferably graduated, as indicated in Fig. 1, zero on each barconstituting the center line, and by having the form evenly spaced oneither side of the centering line, the form may be readily centered withrespect to the lock-up mechanism. When the proper position of the bars5:: and 60: has been determined, the screws 24 of the member 12 aredrawn up, thereby rigidly clamping the bars 5a and 6a in their desiredrelation, after which the bars 5b and 6b, together with the members 14b,14c, and 14d, are moved adjacent thereto but spaced a slight distancefrom the adjacent edges of the form. The screws 24 of the members 14b,14c, and 14d are then drawn down to lock all of the bars and membersrigidly together, after which the quoins 31 are suitably positioned onthe bars 5b and 6b, preferably in approximately the center of the form,and by rotating the discs 38 in the proper direction, the members 34 areengaged with the adjacent edges of the form, compressing the samebetween such member and the oppositely disposed bar. Thus, asillustrated in Fig. l, the quoins 31 en age the upper and right handedge of the form 1 with the left hand and lower edge of the form,bearing against the bars 5a and 60, respectively. Obviously, if the form1 possesses an elongated shape, it may be desirable to use two or morequoins along such elongated edge. In some cases it may be desirable toemploy additional furniture adjacent the form 1, and this may be readilyaccomplished by increasing the size of the space to receive the form.However, cases may arise where the form to be locked up is sufficientlysmall that the quoins 31 cannot be utilized without employing additionalfurniture, the use of which may be undesirable. In this event, suchsmall form may readily be locked up without utilizing additionalfurniture by means of supplemental lock-up screws, which may be providedon the members 14b, 14c, and 14d. Such additional loci-up means isillustrated in Fig. l and comprises screws 56b, 56c, and 56d, themembers 14b and Mn! each carrying one of such screws, and the member ldccarrying two screws, the axes of which extend at right angles to oneanother. Each of the screws is provided with a disc-like head 57, theperiphery of which is provided with apertures 58 similar to the discs 25and 36. As illustrated in Fig. l, the members 14b, 14-0, and 14a areeach extended to provide suflicient material for supporting therespective screws.

In locking up a small form by means of the screws 56,

the form is placed in engagement with the bars 5a and.

6a in the same manner as previously described, and the members 14b, 14c,and 14d positioned close to the adjacent edges of the form with thescrews 56 being fully retracted in the respective members. The latterare then looked in position, following which a suitable tool ispositioned in the apertures 58 of the discs 57, and the latter rotatedto withdraw the screws from the members l4, and upon engagement of theform with the discs 57, compression forces may be applied to the formcomparable to that of the quoins 31.

After the form has been locked in the device, the lock-up mechanism andthe form comprise an integral assembly which may be readily picked upand handled, or transported without danger of injury to the form. Thesame may be readily secured in the chase 2 by positioning the device andform between the inner edges 3 and 4 of the chase, and by rotating thediscs 12 in a direction to move the same away from the adjacent end ofits respective bar; the edges 3 and 4 of the chase may be engaged by therespective discs, and the bars associated therewith put undercompression to firmly secure the bars in the chase. Minor adjustments ofthe form in the chase may be made by loosening the discs and backing offthe discs at one corresponding end of a pair of parallel bars, andtaking up the discs at the opposite ends of such bars, thus moving theform in a direction parallel to such pair of bars. It is thereforeunnecessary in making minor adjustments of the form in the chase tounlock the form from the lock-up mechanism, although, of course, if theadjustment was considerable, it might be desirable to adjust the bars 5and 6 relative to each other.

While I have illustrated the use of a rotatablepinion, together withmeans for preventing rotation of the pinion when desired, to accomplishlocking of the members 14 and bars 5 and 6 in their desired positions,the locking mechanism may take a form other than a rotatable pinion.Such a construction is illustrated in Figs. 8, 9, and 10, in which themember 61 corresponds to the member 14a and is provided with channels 62and 63 corresponding to the channels 15 and 16 of the member 14a adaptedto receive bars 5 and 6, respectively corresponding to the bars 5a and6a engaged with member 14a.

Positioned in the recess 6% of the member 61, and rotatably mounted on apin 65, is a dog 66 having teeth 67 formed thereon engageable with theteeth of the rack 8. The dog 66 is urged about the pin 65 by means of acompression spring 68 in a direction to rotate the dog towards the rack7 and bring the teeth 67 into engagement with the teeth of the rack,operative to firmly lock the bar and member together. The dog 66 isprovided with an L-shapcd handle 69, by means of which the dog may berotated out of engagement with the rack by applying downward pressure onthe handle 69 in opposition to the spring 68. As illustrated in Figs. 7and 9, the bore 71 in the dog 66, through which the pin 65 extends, maybe flared slightly, as indicated at "72, to permit the dog to be cookedslightly and, as illustrated in 8, the member 61 may be undercut, asindicated at 73, to form a shoulder under which the handle may bepositioned when in a depressed position and disengaged from the rack,thereby providing means, if desired, for bold ing the dog out ofengagement with the rack during movement of the member 61 relative tothe bar 5.

The member 61 is also provided with a second dog 74 positioned in arecess 75 in the member 61 and pivotally mounted on a pin 76, the dogbeing provided with teeth 77 engageable with the teeth on the rack 8 ofthe bar 6, and urged toward the rack 8 by a compression spring 73. Thedog 74 is likewise provided with a handle 79, by means of which theteeth 77 may be disengaged from the rack 8 by exerting downward pressureon the handle 79 in opposition to the spring 78. Likewise, the bore 71of the dog 74 may be flared, as indicated at 72, and the member 61 maybe provided with an undercut 81, similar to the undercut 73, by means ofwhich the dog may be retained in disengaged position by cocking the dogslightly on the pin 76.

The operation of the device incorporating corner members similar to themember 61 is substantially the same as that heretofore described, withthe exception that the members may be unlocked from the respective barsmerely by actuating the handles on the respective dogs, and as thequoins 31 or screws 56 and discs 12 are capable of greater movement thanthe linear tooth pitch, the members wolud be positioned relative to thebars merely to the closest interlocking tooth, after which the formwould be clamped by means of the quoins 31 or the screws 56, and anyadditional adjustment made by means of the discs 12 when the device ismounted in the chase.

While I have described the quoins 31 as being actuated by screw means,if desired, the quoins could be actuated by a cam, and such aconstruction is illustrated in Figs. 11 and 12, wherein the quoin 31'comprises a body member or block 32' having a channel 33 therein for thereception of a locking bar, and a transverse channel 82 adapted toreceive the rectangular shank 83 of the pressure plate or member 84,corresponding to the member 34 of the quoin 31. The block 32' is alsoprovided with a vertically extending bore 85, in which is positioned acylindrical actuating member 536 having a cam portion 87 positionedadjacent the end 88 of the shank 83 and engageable therewith. The freeend of the member 86 is provided with a relatively flat head 8?, theperipheral edges of which are beveled, as indicated at 91. The member 86is retained in the bore by any suitable means as, for example, deformingthe material of the block 32 adjacent the mounting of the bore 85 toform a retaining flange 92 adjacent the beveled edge 91 of the head 89.The opposite end of the member 86 is provided with a short stem 93positioned in a bore 94, of less diameter than that of the bore 85,forming a retaining flange 95 engageable with the shoulder 96 thusformed on the member 36, thereby firmly retaining the member 86 in thebore 85. Each end of the member 86 is provided with a recess 97 of asize and shape to receive a suitable tool by means of which the member86 may be rotated. The pressure plate 84 is urged toward the block 32'by a pair of compressing springs 48 (only one of which is illustrated)comparable to the construction illustrated in Fig. 5 and including thespring 48, bore 44, pin 45, etc. Thus the plate 84 may be extended fromthe block 32 by rotating the member 86, whereby the cam portion 87thereof will move the shank 83 and plate 84 outwardly or, by reversingthe rotation of the member 86, the plate 84 will move toward the block32 under the action of the springs 48.

In some cases, as for example where a plurality of type forms such asbook pages, or the like, are to be simultaneously printed and thuslocked in a single lockup device, separator bars may be employed betweenthe respective forms. Such spacing bars are illustrated in Fig. 13, inwhich the bars ldizz and llillb are substantially the same as the bars 5and 6, with the exception that the racks 7 and 8 are omitted. The ends102 of the bars are constructed in the same manner as the bars 5 and 6,with the end of each bar being provided with a disc 12 threadedlymounted on a stud 11 rigidly carried by the end of the bar, the discsbeing provided with apertures 13 in their peripheral edge for engagementwith a suitable actuating tool. The bars may be employed in thefollowing manner: Assuming, for example that four forms are to be lockedup, each form being of substantially the same size, the lower left handform would be positioned in engagement with the bars 5a and 6a in amanner similar to the form 1 illustrated in Fig. 1. A bar 191a wouldthen be positioned directly above the form with the bar extendingparallel to the bars 6, and a second form would then be positioned abovethe bar 101a adjacent the bar 5a. The bar 101b would then be positionedvertically adjacent the right hand edges of both forms, and theremaining two forms would be positioned in the remaining two spaces,following which the entire group of forms would be placed undercompression by means of quoins engaging the upper edges of each of thetop forms, and the right hand edges of each or" the two right handforms, with the quoins, of course, being positioned on the bars 512 and6b. Obviously, if only two forms were being locked up, only one barpositioned between the two forms would be employed. When applied to thechase, the bars 5 and 6 would be placed under compression, as heretoforedescribed, after which each of the bars 101a and 1011), or merely one ofthe bars, if that is all that is employed, is then placed undercompression in a similar manner, whereby each form is firmly locked inposition.

It will be noted from the above description that I have provided alock-up mechanism which eliminates the necessity of utilizing furnitureor of locking the form directly in the chase or galley, and whichemploys a suitable form of quoin so that, apart from the elimination ofthe furniture, similar operations may be employed in locking up a formin my lock-up mechanism as is employed in present practice. Likewise,the use of the quoins provides a very simple and flexible constructionwhich is very durable and relatively inexpensive to manufacture.

Having thus described my invention, it is obvious that variousimmaterial modifications may be made in the same without departing fromthe spirit of my invention; hence, I do not wish to be understood aslimiting myself to the exact form, construction, arrangement, andcombination of parts herein shown and described or uses mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. In a lock-up mechanism, a pair of spaced parallel bars, a second pairof spaced parallel bars extending across the first pair of bars atsubstantially right angles thereto, with the bars defining a formreceiving space, each of said bars being independently movable relativeto the other bars and each having a tooth rack thereon, corner membersat the juncture of each pair of crossing bars operative to maintain theparallel and angular relation between said bars, a pair of rotatablepinions operatively mounted on Shafts carried by each member, eachpinion engageable with one of the adjacent racks and operative by a discoperatively mounted on its respective shaft, means operatively engagingthe respective shafts for preventing rotation of said pinions tomaintain the respective bars in fixed relation to provide asubstantially rigid form supporting structure, adjustable meansextending inwardly into said form receiving space and movable relativeto said structure into said space operative to engage and exertcompression forces on a pair of intersecting edges of a form placedtherein to retain the latter in said structure, and individual means onthe ends of each of said bars for engaging means for supporting saidstructure in a press.

2. In a. lock-up mechanism, a pair of spaced parallel bars, a secondpair of spaced parallel bars extending across the first pair of bars atsubstantially right angles thereto, with the bars defining a formreceiving space, each of said bars being independently movable relativeto the other bars and each having a tooth rack thereon, corner membersat the juncture of each pair of crossing bars operative to permitlongitudinal sliding movement between said bars but maintain theparallel and angular relation therebetwcen, means for preventingtransverse movement of said bars relative to their respective cornermembers, a pair of rotatable pinions carried by each member, each pinionengageable with one of the adjacent racks and having a shaft rigidlysecured thereto, each member being provided with a split bearing foreach pinion shaft, screw means for drawing each split bearing togetherto clamp the respective pinion shafts therein and maintain therespective bars in fixed relation to provide a substantially rigid formsupporting structure, adjustable means extending inwardly into said formreceiving space and movable relative to said structure into said spaceoperative to engage and exert compression forces on a pair ofintersecting edges of a form placed therein to retain the latter in saidstructure, and individual means on the ends of each of said bars forengaging means for supporting said structure in a press.

3. In a lock-up mechanism, a pair of spaced parallel bars, a second pairof spaced parallel bars extending across the first pair of bars atsubstantially right angles thereto, with the bars defining a formreceiving space, means including rotatable pinions and shafts thereforand racks complemental to the pinions and securing means operativelyengaging the shafts to prevent rotation thereof at the juncture of eachpair of crossing bars for maintaining the same in fixed relation toprovide a substantially rigid supporting structure, one or moreadjustable quoins slidably carried by each of two intersecting bars andadapted to be detachably mounted above or below said bars as assembled,each quoin having a compression member extendin inwardly into said formreceiving space and movable relative to said structure into said spaceoperative to engage and exert compression forces on intersecting edgesof a form placed therein to retain the latter in said structure, andindividual adjustable means on the ends of each of said bars forengaging means for supporting said structure in a press.

4. In a lock-up mechanism, a pair of spaced parallel bars, a second pairof spaced parallel bars extending across the first pair of bars atsubstantially right angles thereto, with the bars defining a formreceiving space,

each of said bars being independently movable relative to the otherbars, means including rotatable pinions and shafts therefor and rackscrmplemental to the pinions and securing means operatively engaging theshafts to prevent rotation thereof at the juncture of each pair ofcrossing bars for maintaining the same in fixed relation in any of theiradjusted positions to provide a substantially rigid form supportingstructure, adjustable means slidably carried by each of a pair ofintersecting bars and adapted to be detachably mounted above or belowsaid bars as assembled, said last-mentioned means extending inwardlyinto said form receiving space, and movable relative to said structureinto said space operative to engage and exert compression forces onintersecting edges of a form placed therein to retain the latter in saidstructure, and individual means on the ends of each of said bars forengaging means for supporting said structure in a press.

5. In a lock-up mechanism, a pair of spaced parallel bars, a second pairof spaced parallel bars extending across the first pair of bars atsubstantially right angles thereto, with the bars defining a formreceiving space, each of said bars being independently movable relativeto the other bars, means including rotatable pinions and shafts thereforand racks complemental to the pinions and securing means operativelyengaging the shafts to prevent rotation thereof at the juncture of eachpair of crossing bars for maintaining the same in fixed relation in anyof their adjusted positions to provide a substantially rigid formsupporting structure, adjustable qnoin means operatively mounted uponeach of a pair of intersecting bars and extending inwardly into saidform receiving space and adapted to be detachably mounted above or belowsaid bars as assembled, and movable relative to said structure into saidspace operative to engage and exert compression forces on intersectingedges of a form placed therein to retain the latter in said structure,and individual means 10 on the ends of each of said bars for engagingmeans for supporting said structure in a press.

6. In a form locking-up device, a lock-bar having rack teeth thereon, aslide slidably connected with said lockbar, a pinion rotatably mountedin said slide and meshing with said rack teeth, a supporting shaftrigidly connected to said pinion, said slide having a split bearing forsaid shaft, and screw means for compressing opposite portions of saidsplit bearing to rigidly clamp the shaft and pinion thereto and preventrelative movement between the slide and lock-bar.

References Cited in the tile of this patent UNITED STATES PATENTS362,301 Megorden May 3, 1887 435,771 Rollings Sept. 2, 1890 451,625Smith May 5, 1891 498,935 Jesinghaus June 6, 1893 602,679 Deegan Apr.19, 1898 625,005 Wilkinson May 16, 1899 682,840 Burroughs Sept. 17, 1901753,671 Conly Mar. 1, 1904 911,173 Stephens Feb. 2, 1909 1,525,937Hilland Feb. 10, 1925 1,648,417 McLaughlin Nov. 8, 1927 1,740,382 WeldonDec. 17, 1929 1,803,782 Weldon May 5, 1931 1,938,359 Smith Dec. 5, 19331,941,747 Holt Jan. 2, 1934 2,241,597 Hacker May 13, 1941 2,449,381Hilland Sept. 14, 1948 2,593,575 Lance Apr. 22, 1952 FOREIGN PATENTS13,169 Great Britain Aug. 21, 1890 571,276 Germany Feb. 25, 1933

